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Orthopaedic Proceedings
Vol. 94-B, Issue SUPP_XXIX | Pages 104 - 104
1 Jul 2012
Hoare C Harper-Smith H Ashman O Skyrme A Rajaratnam S Armitage A
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Introduction

This study investigates the effect of Rivaroxaban (Bayer HealthCare) on early post-operative stiffness in primary total knee replacement.

Methods

The anticoagulant of choice for total knee arthroplasty in our Department was changed from Enoxaparin to Rivaroxaban in September 2009. We reviewed a consecutive, multi-surgeon, multi-implant series of primary total knee replacements for a 6 month period prior to (group A) and after (group B) the treatment change. All patients were reviewed by an independent Clinical Specialist Physiotherapist at 6 weeks post-surgery, where the range of movement was recorded prospectively using a goniometer. A stiff knee replacement was defined as one with 15 degrees of extension deficit or flexion to less than 75 degrees at 6 week follow up. All data was analysed on an intention to treat basis.